With Ubuntu 12.10 and a nvidia card, sometimes my monitor won't turn back on when the machine returns from hibernate mode. Actually it may not be the monitor but the system won't recover so I have to reboot. I tested the memory and that is working. The hard-drive seems to be fine. I usually run all the updates, hopefully an update will fix the problem.

Has anyone experienced this? It is intermittent, maybe two times a week after running it continuously.

  • Yes, with an AMD card, I'm sure its the kernel, seeing many post on this subject – Meer Borg Mar 9 '13 at 19:29
  • AMD CPU yes? Maybe that is it. – Berlin Brown Mar 9 '13 at 23:03
  • Graphics card, should have said AMD Catalyst ;) – Meer Borg Mar 9 '13 at 23:05
  • Nvidia card, AMD GPU, interesting. It is a Geforce2 something, older model about 6 years ago. – Berlin Brown Mar 11 '13 at 5:20

Maybe this will help you, It's a workaround

Hi! Finally after a long time of searching and messing around I have figure out a temporary work around solution until this bug gets patched in future kernel releases. Please see below:

Use this script only if you have been experiencing issues with resuming from standby/suspend in Ubuntu 12.04 LTS and the screen remains lit but black when you wake your machine.

  • Step 1:
    Open up a terminal and create a script file as follows:

    sudo gedit /etc/pm/sleep.d/20_custom-ehci_hcd

  • Step 2:
    Copy the entire script below into the file you just created and save it:

    #inspired by http://art.ubuntuforums.org/showpost...0&postcount=19
    #...and http://thecodecentral.com/2011/01/18...ot-working-bug
    # tidied by tqzzaa :)
    DRIVERS="ehci xhci" # ehci_hcd, xhci_hcd
    unbindDev() {
    echo -n > $DEV_LIST 2>/dev/null
    for driver in $DRIVERS; do
    for dev in `ls $DDIR 2>/dev/null | egrep "^$HEX+:$HEX+:$HEX"`; do
    echo -n "$dev" > $DDIR/unbind
    echo "$driver $dev" >> $DEV_LIST
    #for bus in $EHCI_BUSES; do
    echo -n $bus > /sys/bus/pci/drivers/ehci_hcd/unbind
    # done
    bindDev() {
    if [ -s $DEV_LIST ]; then
    while read driver dev; do
    #for bus in $EHCI_BUSES; do
    echo -n $bus > /sys/bus/pci/drivers/ehci_hcd/bind
    while [ $((MAX_BIND_ATTEMPTS)) -gt 0 ]; do
    echo -n "$dev" > $DDIR/bind
    if [ ! -L "$DDIR/$dev" ]; then
    sleep $BIND_WAIT
    done < $DEV_LIST
    rm $DEV_LIST 2>/dev/null
    chvt 1
    chvt 7
    EHCI_BUSES="0000:00:1a.0 0000:00:1d.0"
    case "$1" in
    Step 3:
    Give the script run permissions by typing:
    sudo chmod 755 /etc/pm/sleep.d/20_custom-ehci_hcd

This script should work or your money back guaranteed (Joking this is open source project so use at own risk :P ), as it forces the graphic card to reboot iself using a good old kick from chvt1 and chvt7 commands which simulate what I used to do manually using Ctrl+Alt+F1 and Ctrl+Alt+F7 to refresh the GUI.

Source: Ubuntu Forums

  • Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. – Eric Carvalho Mar 9 '13 at 20:02
  • So not doing that, but at least I know that others experienced the issue. – Berlin Brown Mar 9 '13 at 23:03
  • I use it myself and it works for me. – Dummyxl Mar 15 '13 at 12:58

Your Answer

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Not the answer you're looking for? Browse other questions tagged or ask your own question.